From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from www.osadl.org ([213.239.205.134] helo=mail.tglx.de) by canuck.infradead.org with esmtp (Exim 4.63 #1 (Red Hat Linux)) id 1HZv0l-0006WI-0f for linux-mtd@lists.infradead.org; Fri, 06 Apr 2007 16:26:21 -0400 Subject: Re: Is there a minimal size requirement for oobfree area? From: Thomas Gleixner To: Kevin Zhang In-Reply-To: References: Content-Type: text/plain Date: Fri, 06 Apr 2007 22:26:46 +0200 Message-Id: <1175891206.28263.476.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Cc: linux-mtd@lists.infradead.org Reply-To: tglx@linutronix.de List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Thu, 2007-04-05 at 12:10 -0500, Kevin Zhang wrote: > Hi, > > I am trying to understand if there is a size requirement for the > oobfree area. For the 512-byte nand flash, does the oobfree area have > to be at least 8 bytes? No, there is no real requirement. The oob area is not mandatory for JFFS2. If you want to use YAFFS, it is AFAIK. tglx